WO2010102842A2 - Machine électrique - Google Patents

Machine électrique Download PDF

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Publication number
WO2010102842A2
WO2010102842A2 PCT/EP2010/050188 EP2010050188W WO2010102842A2 WO 2010102842 A2 WO2010102842 A2 WO 2010102842A2 EP 2010050188 W EP2010050188 W EP 2010050188W WO 2010102842 A2 WO2010102842 A2 WO 2010102842A2
Authority
WO
WIPO (PCT)
Prior art keywords
electric machine
rotor
impeller
cooling fluid
shaft
Prior art date
Application number
PCT/EP2010/050188
Other languages
German (de)
English (en)
Other versions
WO2010102842A3 (fr
Inventor
Uwe Knappenberger
Wolfgang Schuerle
Alexander Bawidamann
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2010102842A2 publication Critical patent/WO2010102842A2/fr
Publication of WO2010102842A3 publication Critical patent/WO2010102842A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

Definitions

  • the present invention relates to an electric machine according to the preamble of claim 1 and a drive device according to the preamble of claim 14.
  • Drive devices preferably hybrid drive devices, in particular with an internal combustion engine and an electric machine are used, for example, to drive motor vehicles.
  • the functioning as a motor and generator electric machine in the motor vehicle has an axis or shaft with a stator or rotor arranged thereon.
  • the stator or rotor releases waste heat. For this reason, sufficient cooling of the electric machine is required.
  • the drive device has a housing in which the electric machine is arranged or which is part of the electric machine.
  • a turbomachine for.
  • JP 2006-230154 an electric machine with a hollow shaft and a stator arranged on the hollow shaft is known.
  • a rotor rotates about the stationary stator by means of a bearing on the hollow axle.
  • a fan delivers air for cooling through the hollow axle to cool the hollow axle and the stator.
  • DE 10 2006 040 1 17 A1 shows a hybrid drive unit for a motor vehicle for installation between an internal combustion engine and a vehicle transmission, which has an electric machine with a rotor and a stator and can be operated as a motor or generator, wherein radially inside the electric machine at least one switchable coupling is disposed and the vehicle transmission has a transmission input shaft and a transmission housing, wherein the coolant, for example, cooling oil, is supplied and discharged substantially for cooling the clutch by a central coolant supply from the transmission to the hybrid drive unit and that the central coolant supply is substantially closed Coolant circuit connects and that in the region of the coupling, a pressure compensation chamber is provided, which can be flowed through by the coolant of the coolant circuit.
  • the coolant for example, cooling oil
  • Electric machine in particular for a motor vehicle, comprising a housing, a shaft, a stator, a preferably connected to the shaft rotor, a conveyor for a cooling fluid for conveying the cooling fluid in the region of the stator and / or the rotor for cooling the electric machine wherein the rotor is provided with at least one channel for passing the cooling fluid through the conveyor by means of the rotor.
  • the formation of at least one channel in the rotor has the advantage that the rotor can be cooled not only on the outside by means of the cooling fluid, but also in the interior of the rotor, the cooling fluid can cool the rotor. As a result, a particularly efficient and uniform cooling in the entire cross section of the rotor is possible.
  • the at least one channel is formed in the axial direction of the shaft.
  • the cooling fluid can be passed through the rotor in a particularly simple manner, because a delivery of the cooling fluid in the axial direction is particularly easy to carry out.
  • the at least one channel is formed with a deviation of less than 30 ° in the axial direction of the shaft.
  • At least two channels with a deviation of 20% at the same distance from the axis of the shaft are provided.
  • the cooling fluid can be conveyed through at least two adjacent channels in the opposite direction.
  • the at least one channel is formed with a deviation of less than 30 ° in the radial direction of the shaft.
  • the stator is provided with at least one channel for passing the cooling fluid through the stator.
  • the additional formation of at least one channel also on the stator for passing the cooling fluid through the stator makes it also possible to cool the stator substantially uniformly in cross section. This also allows the stator to be effectively cooled.
  • the at least one channel is aligned with a deviation of less than 30 ° in the axial direction of the shaft.
  • the conveying device is designed as a turbomachine for passing the cooling fluid through the at least one channel.
  • the turbomachine has an impeller with at least one blade formed on the impeller.
  • the impeller is connected to the shaft for driving the impeller.
  • the conveyor can be carried out particularly easily.
  • at high rotational speeds of the shaft also larger amounts of waste heat on the rotor and / or stator and at higher speeds, a larger amount of cooling fluid per unit time is promoted by the impeller with blades. This causes an automatic adjustment of the Delivery of cooling fluid to the amount of waste heat occurring on the rotor and / or on the stator.
  • the turbomachine can be driven by a, preferably electric, drive unit.
  • the turbomachine can thus be driven independently of the speed of the shaft.
  • the impeller is disk-shaped.
  • the at least one blade is formed on a side of the rotor facing away from the rotor, and the rotor has at least one opening through which the cooling fluid can be conducted by means of the at least one blade.
  • the at least one opening is aligned in each case congruent to the at least one channel of the rotor.
  • the cooling fluid is conveyed through the at least one opening in the impeller to the at least one channel and through the at least one channel by means of the at least one blade or vice versa.
  • the cooling fluid is air.
  • a drive device preferably hybrid drive device, in particular for a motor vehicle, comprising preferably an internal combustion engine, in particular for driving the motor vehicle, preferably at least one housing, at least one, preferably arranged in the at least one housing, electric machine with a stator and a rotor, wherein the at least an electric machine is designed according to an electric machine described in this patent application.
  • the at least one housing is multi-part.
  • the housing is in one piece.
  • the at least one electric machine acts as a motor and / or as a generator.
  • a motor vehicle according to the invention comprises an electric machine described in this patent application and / or a drive device described in this patent application.
  • the motor vehicle comprises rechargeable batteries.
  • the batteries supply electric power to the electric machine, and when decelerating the motor vehicle by means of the electric machine, the batteries can be charged by the electric power generated by the electric machine.
  • the batteries can also be charged during a standstill of the motor vehicle, for example, from a public power grid.
  • the batteries are designed as lithium-ion batteries.
  • FIG. 3 is a perspective view of a rotor and a shaft of the electric machine of FIG. 2,
  • Fig. 4 is a perspective view of an impeller with blades of the electric machine of FIG. 2 and
  • Fig. 5 is a view of a motor vehicle. Embodiments of the invention
  • a hybrid drive device 2 formed drive device 1 for a motor vehicle 3 is shown.
  • the hybrid drive device 2 for a motor vehicle 3 comprises an internal combustion engine 4 and an electric machine 5, which acts as a motor 17 and generator 18, respectively for driving or decelerating the motor vehicle 3.
  • the internal combustion engine 4 and the electric machine 5 are connected to each other by means of a drive shaft 20.
  • the mechanical coupling between the internal combustion engine 4 and the electric machine 5 can be produced and canceled by means of a coupling 19.
  • an elasticity 21 is arranged in the drive shaft 20, which couples the internal combustion engine 4 and the electric machine 5 together.
  • the electric machine 5 is mechanically coupled to a differential gear 23.
  • a converter 22 and a transmission 27 is arranged in the drive shaft 20, which connects the electric machine 5 and the differential gear 23 with each other.
  • the drive wheels 25 are driven via the wheel axles 24.
  • a shaft 8 is made of metal, for. As steel, on which the rotor 7 is arranged concentrically, wherein the shaft 8 and the rotor 7 are mounted by means of a bearing, not shown, on the fixed housing 9.
  • the shaft 8, the rotor 7 and the stator 6 are disposed within the housing 9.
  • the stator 6 Concentrically around the rotor 7, the stator 6 is arranged on a housing 9, which is fastened thereto by means of fixing means (not shown).
  • the stator 6 may be attached to the housing 9 without additional fixing means, for. B. by means of pressing compound and / or shrinkage composite.
  • the shaft 8 is within the hybrid drive device 2 with the drive shaft 20 of the
  • Hybrid drive device 2 connected or represents a part of the drive shaft 20.
  • the rotor 7 of the electric machine 5 has twelve channels 11 for passing a cooling fluid through the rotor 7.
  • the shaft 8 has an axis 26.
  • the twelve channels 11 are formed at the same distance from the axis 26 of the shaft 8 in the axial direction to the axis 26 in the rotor 7.
  • a conveyor 10 designed as a flow machine 12 is present at both ends of the rotor 7, ie a first turbomachine 12a and a second turbomachine 12b.
  • the turbomachines 12 serve to convey the cooling fluid through the twelve channels 11.
  • the turbomachine 12 is designed as an impeller 13 with blades 14 arranged thereon.
  • the blades 14 (FIGS.
  • the illustrated in Fig. 3 six openings 16 of the impeller 13 of the first flow machine 12 a serve to the cooling fluid, d. H. Air to enter the first six channels 1 1.
  • the six openings 16 have the same size as the channels 1 1, wherein the six openings 16, which are shown in Fig. 3, are formed congruent to the respective channels 11 and are aligned, through which the air through the openings 16 and then flows through the respective channels 1 1.
  • On the impeller 13 with blades 14 also radial openings 29 are present. The radial openings 29 are formed between the cover plate 28, the blades 14 and the remaining disc-shaped part of the impeller 13 as shown in FIG. 4.
  • the second flow machine 12b which is shown in FIG.
  • the second turbomachine 12b thus serves to suck in the air through the openings 16 of the cover plate 28 of the first turbomachine 12a, this sucked air then flows through the six channels 1 1 of the rotor 7 and subsequently flows through six radial openings 29 of the in Fig. 3 on behind illustrated second turbomachine 12b again.
  • the air flows through six openings 16 (not shown in Fig. 3) on the second turbomachine 12b, then through six more channels 1 1 in the rotor 7 and then flows through six radial openings 29 on the first turbomachine 12a out again.
  • the first and second turbomachine 12a, 12b are thus used to suck in air and to suck the air through the six channels 1 1 and the corresponding thereto aligned six openings 16 in the cover plates 28.
  • This is passed through the twelve channels 1 1 of the rotor 7 each adjacent in the opposite direction, the air as a cooling fluid for cooling the rotor 7.
  • the rotor 7 is cooled not only on the outside, but also inside.
  • the housing 9 has not shown in the figures openings through which the air flows into the housing 9 and is discharged. These openings on the housing 9 are formed approximately in the region of the openings 16 on the two cover plates 28 and in the region of the radial openings 29. As a result, air can be conducted from the surroundings of the electric machine 5 through the rotor 7 in a simple manner for cooling the electric machine 5.
  • the cooling fluid is passed through the rotor 7 in channels 11 by means of two turbomachines 12a, 12b, so that a uniform cooling of the rotor 7 is ensured.

Abstract

L'invention concerne une machine électrique (5), en particulier pour un véhicule automobile (3), comprenant un boîtier (9), un arbre (8), un stator (6), un rotor (7), un dispositif de transport (10) pour un fluide de refroidissement, destiné à transporter le fluide de refroidissement au niveau du stator (6) et/ou du rotor (7), afin de refroidir la machine électrique (5). Le rotor (7) est doté d'au moins un canal (11) afin que le fluide de refroidissement soit envoyé au travers du rotor (7) par le dispositif de transport (10).
PCT/EP2010/050188 2009-03-11 2010-01-11 Machine électrique WO2010102842A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009001458.6 2009-03-11
DE102009001458A DE102009001458A1 (de) 2009-03-11 2009-03-11 Elektromaschine

Publications (2)

Publication Number Publication Date
WO2010102842A2 true WO2010102842A2 (fr) 2010-09-16
WO2010102842A3 WO2010102842A3 (fr) 2011-04-21

Family

ID=42061070

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/050188 WO2010102842A2 (fr) 2009-03-11 2010-01-11 Machine électrique

Country Status (2)

Country Link
DE (1) DE102009001458A1 (fr)
WO (1) WO2010102842A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014202283A1 (de) * 2014-02-07 2015-08-13 Bühler Motor GmbH Ölpumpenantrieb
EP2684280A4 (fr) * 2011-03-09 2016-06-29 Hdd Servo Motors Ab Moteur à aimants refroidis
CN112204852A (zh) * 2018-05-30 2021-01-08 纬湃科技德国有限责任公司 用于尤其是机动车的电机的转子以及尤其是用于机动车的电机
CN114829783A (zh) * 2019-12-13 2022-07-29 纬湃科技有限责任公司 用于转子的风扇轮以及电机

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2993762A1 (fr) * 2014-09-02 2016-03-09 ABB Technology AG Ensemble de rotor de machine électrique
DE102015205724B4 (de) 2014-12-01 2016-10-27 Thyssenkrupp Ag Kühlsystem eines elektrischen Antriebes
DE102014117962A1 (de) 2014-12-05 2016-06-09 Thyssenkrupp Presta Teccenter Ag Elektrisches Antriebssystem mit einer verbesserten Kühlung
DE102020212864A1 (de) 2020-10-12 2022-04-14 Volkswagen Aktiengesellschaft Elektromaschine für ein Fahrzeug
DE102021124088A1 (de) 2021-09-17 2023-03-23 Seg Automotive Germany Gmbh Elektrische Maschine mit Kühlmittelkanälen
DE102022100988A1 (de) 2022-01-17 2023-07-20 Nidec Motors & Actuators (Germany) Gmbh Fluidgekühlter Rotor für eine elektrische Maschine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006230154A (ja) 2005-02-21 2006-08-31 Toshiba Corp 回転電機
DE102006040117A1 (de) 2006-08-26 2008-03-27 Zf Friedrichshafen Ag Hybridantriebseinheit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3758583B2 (ja) * 2002-02-06 2006-03-22 日産自動車株式会社 回転体の冷却構造
EP1557928A1 (fr) * 2004-01-15 2005-07-27 Siemens Aktiengesellschaft Machine électrique et correspondant procédé de refroidissement
JP4549127B2 (ja) * 2004-08-05 2010-09-22 東洋電機製造株式会社 車両用全閉外扇電動機
DE102004047735A1 (de) * 2004-09-30 2006-04-13 Siemens Ag Geschlossene elektrische Maschine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006230154A (ja) 2005-02-21 2006-08-31 Toshiba Corp 回転電機
DE102006040117A1 (de) 2006-08-26 2008-03-27 Zf Friedrichshafen Ag Hybridantriebseinheit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2684280A4 (fr) * 2011-03-09 2016-06-29 Hdd Servo Motors Ab Moteur à aimants refroidis
DE102014202283A1 (de) * 2014-02-07 2015-08-13 Bühler Motor GmbH Ölpumpenantrieb
CN112204852A (zh) * 2018-05-30 2021-01-08 纬湃科技德国有限责任公司 用于尤其是机动车的电机的转子以及尤其是用于机动车的电机
CN114829783A (zh) * 2019-12-13 2022-07-29 纬湃科技有限责任公司 用于转子的风扇轮以及电机

Also Published As

Publication number Publication date
DE102009001458A1 (de) 2010-09-16
WO2010102842A3 (fr) 2011-04-21

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